The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B7. Beijing 2008
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Table 1. Surface coverage of years 1987, 1997 and 2007.
As indicated in Table 1, the urban area and roads increase, in
addition to forest is reduced in Istanbul between 1987 and 2007.
As indicated in the Table 2, the urban area difference is
increased 275,332 km 2 between 1987 and 1997, 183,365 km 2
between 1997 and 2007, 458,699 km 2 between 1987 and 2007.
Moreover, growth rate of the city between 1987 and 1997 is
65%, between 1997 and 2007 is 26%, between 1987 and 2007 is
109%. Istanbul’s urban area is almost doubled in 2007 of its
value in 1987.
includes urban area, agricultural area, forest, road, sea, lake and
sand classifications.
There is 10 year difference between images. Classification of
the images shows the progress of the urban area in 10 year
period which is started in 1987 and finished in 2007. There is a
big difference between 1997 and 2007 images to 1987 image
when their urban area compared to each other.
Figure 4. Classification of the 1987 year urbanization for
Istanbul image in 2007.
Increasing of the urban areas and dicreasing of the forest and
field areas have shown in the classification of images (figure 2,
3, and 4) which are belong to 1987, 1997 and 2007. Moreover,
numerical values of the urbanization change for 1987-2007
period, are displayed in Table 1.
Urban
Road
Agriculture
Forest
Sea
Lake
Sand
Clouds
Urban
Road
Agriculture
Forest
Sea
Lake
Sand
Clouds
Figure 2. Classification of the urbanization for Istanbul image in
1987.
Road
Agriculture
orest
Sea
Figure 3. Classification of the urbanization for Istanbul image in
1997.
1987
1997
2007
Urban (km 2 )
325,964
594,237
746,583
Roads (km 2 )
90,794
101,855
132,874
Field (km 2 )
1587,780
1543,586
1514,900
Forest (km 2 )
1640,618
1388,679
1216,794
Lake (km 2 )
123,661
138,291
122,517
Sea (km 2 )
1409,151
1400,358
1312,194
Sand (km 2 )
52,333
73,322
102,726
Cloud (km 2 )
8,974
60,740
1987-1997
1997-2007
1987-2007
Urban
area
difference
275,332
km 2
183,365
km 2
458,699
km 2
Growth
J29
65%
26%
109%
Table 2. Urban area change from 1987 to 2007.